Table 5. The minimum inhibitory concentration (MIC) of nine heavy metals in C.gilardii CR3 and C.metallidurans CH34.

		MIC(mM) a
Metal Ionic form	Formulation Compound	C. gilardii CR3	C. metallidurans CH34
Ag +	AgNO3	0.06	0.0005
Cd 2+	CdCl25H2O	4	4
Co 2+	CoCl26H2O	2	25
Cr 6+	K2CrO4	2	0.4
Cu 2+	CuSO45H2O	3	3
Hg 2+	HgCl2	>0.04	0.0027
Ni 2+	NiCl26H2O	3	13
Pb 2+	Pb(NO3)2	4	1
Zn 2+	ZnSO47H2O	>24	12

^a MIC value of C.gilardii CR3 was from this study, MIC value of C. metallidurans CH34 was from reference [51].